[Libre-soc-bugs] [Bug 898] binutils svp64 objdump support

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=898

--- Comment #32 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to Dmitry Selyutin from comment #31)

> These instructions do not appear in SVP64 CSV files
> ("^(?:LDST)?RM-(1P|2P)-.*?\.csv$"):
> ['b', 'bcctr', 'bctar', 'darn', 'dcbz', 'fabs', 'fabs.', 'fcpsgn',
> 'fcpsgn.', 'fmr', 'fmr.', 'fnabs', 'fnabs.', 'fneg', 'fneg.', 'hrfid',
> 'mcrxrx', 'mfcr', 'mfmsr', 'mfocrf', 'mtcrf', 'mtmsr', 'mtmsrd', 'mtocrf',
> 'rfid', 'sc', 'setvl', 'setvl.', 'svindex', 'svremap', 'svshape', 'td',
> 'tlbie', 'tw']

yes none of these are a surprise, the setvl svindex svremap svshape ones
are "management" (for which 64-bit variants haven't been defined).

mtmsr you absolutely cannot move more than one MSR (Machine Status Register)
so there is absolutely no point vectorising it.

rfid and sc are "return from interrupt" and "system call" respectively,
it is insanity to consider vectorising them.

branch (b) unconditionally is impossible to vectorise, how can you "branch"
to multiple locations?

others just haven't yet had an analysis done on them (fmr etc.)

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